For students
A term of notes, folded into a pen.
The app is free for everyone — no account, no trial that runs out, nothing to pay later. The pen and the printer are not free, so if you are enrolled somewhere there is [Student discount] off the hardware once we have checked.
How it helps you revise
The summarising is the revision. The card is what is left over.
Nothing about a small card is magic. What does the work is the half hour you spend deciding what to leave out, and a limit of 125 words forces that decision onto every line. This is the route most people take, from an open chapter to a ribbon in the barrel.
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01
Close the book first
Write the card from memory, then open your notes and repair what you got wrong. Copying a chapter into the editor teaches you very little; recalling it badly and finding the holes is the part that stays.
Recall first · check second · rewrite the gaps
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02
Cut it down to 125 words
The counter is the whole point. To fit a chapter you have to choose the definition over the example and the formula over the derivation, and those choices are the ones you remember weeks later.
125 words maximum · live counter · one card per topic
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03
Add the formulas and the symbols
Write LaTeX, watch it render, drop it inline or on its own line. Greek letters, set notation and operators are one tap away, so a physics card reads like physics rather than a workaround.
Basics · Analysis · Greek · Sets · Trigonometry
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04
Shrink it, print it, roll it in
Drop the type size, split the card into columns, and check it in the preview at 300%. Export a PDF or send it to the pocket printer over Bluetooth — thermal paper, so there is no ink to run out of the night before.
3px to 16px · 1 to 3 columns · PDF or Bluetooth
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05
Then test yourself against it
Read the card, put it away, say it out loud, and twist the crown to see how much you missed. A card you wrote and cannot recite is a topic you have not finished.
Duplicate a card each term · everything stays on your device
The student offer
What costs nothing, and what is discounted.
Two separate things, and we would rather not blur them. The app is free for everybody — student or not, with a pen or without one. The discount is on the hardware, and only once we have seen that you are enrolled somewhere.
| What | For students | The detail |
|---|---|---|
| The app | Free, and free for everyone | No account, no trial, no paid tier waiting behind a feature |
| Templates and updates | Free | Maths, Physics, History, Vocabulary, Chemistry, and a blank card |
| Your cards | Yours, on your own device | Nothing is uploaded. Export JSON to carry them to another phone |
| The pen | [Student discount] off | Applied with the code we send you |
| The pocket printer | [Student discount] off | Same code, same basket |
| Paper refills | [Student discount] off | It works on repeat orders while the code is still valid |
| Who can claim it | Anyone enrolled, in any country | Sixth form, college, university, apprenticeship or doctorate |
| Proof we accept | Student card, enrolment certificate, or a university email address | A photograph of the document is enough, in any language |
| How long checking takes | Usually 2 working days | A person reads every request. Nothing here is automatic |
| How long the code lasts | 12 months from the day we send it | Send a current document after that and we issue a new one |
| Using the code | One person, as many orders as you like | Not transferable, and not combined with another offer |
| A whole class, or a society | Quoted on its own, from 10 pens | Better than the individual code for most groups — see the wholesale page |
The discount applies to the pen, the printer and the paper. It cannot be used on gift cards, it does not stack with another offer, and the app was already free for everyone. Separately, and importantly: whether any printed aid may be taken into an examination is decided by your school, college, university or examining body. Reading their rules and following them is your responsibility, not ours.
Student verification
Send us the proof. We send back the code.
One form, read by a person, usually within two working days. Tell us where you study and what you can show us, and the reply carries your code and the date it runs out. If you would rather write an ordinary email, [Email] reaches the same person.
Do not attach anything here — this form takes text only. If your institution gave you an email address, use it in the email field below: that is the quickest proof there is. Otherwise we write back asking for a photograph of your student card or your enrolment certificate.
Cover anything on that document we do not need — a student number, a photograph, a date of birth. Your name, the institution and a date are enough. We delete it once the code is issued, and we do not add you to a mailing list. The privacy policy explains the rest.
Buying for a whole class or a student society? That is a wholesale enquiry instead. It starts at ten pens, it is quoted on its own, and it usually beats the individual discount.
- You send this formName, institution, year of study, and what you can show us.
- We check it by handUsually within two working days. If we need the document itself, we ask for it in the reply.
- The code arrivesValid for twelve months, on the pen, the printer and the paper refills.
Student questions
The ones that come up every September.
Something we have not answered? Write to us — a person replies, usually within a working day.
Ask us anythingIs the app really free for students?
It is free for everyone, students included. No account, no trial period, no paid tier hiding behind a feature. Plenty of people use it for years without buying anything from us — write the card, export the PDF, print it on an ordinary printer.
The discount on this page is for the hardware only: the pen, the pocket printer and the paper. Everything the app can do is listed on the app page.
Why would a 125-word card help me revise?
Because making it is the work. To fit a chapter you have to decide what actually matters, say it in your own words, and throw most of the rest away. That decision is the thing you remember afterwards — a card copied straight out of a textbook teaches you almost nothing.
It is not a substitute for past papers, problem sheets, a tutor or sleep. It is a way of forcing the summary to happen at all, and of having it in your pocket when there are ten minutes to spare.
Can I take one into an exam?
That is not ours to say, and we will not pretend otherwise. Every school, college, university and examining body sets its own rules about what may be brought into a room, and those rules are the ones that count. Reading them and following them is your responsibility.
We built this for revising — for the fortnight before, not the hour during. We will not help anyone get around an assessment rule, and a pen that gets you excluded is worth nothing to either of us.
Who counts as a student?
Anyone currently enrolled in education, anywhere: sixth form, college, university, an apprenticeship, a master's or a doctorate — full time or part time, on campus or at a distance.
If you finished last term, the code will have to wait until you enrol again. Teachers and staff are not covered by it; for a department or a classroom set, the wholesale page is the better route.
What proof do you accept?
Any one of these: a student ID card with a date on it, an enrolment or attendance certificate, or an email sent from an address your institution gave you. Documents in any language are fine.
Cover anything we do not need before you send it — the student number, the photograph, the date of birth. Your name, the institution and a date are all we look at.
How long does the code last, and can I use it twice?
Twelve months from the day we send it. Inside that year, use it as often as you like: the pen in October, paper refills in March. After it expires, send a current document and we issue a new one.
It is yours and it is not transferable. It cannot be combined with another offer and it does not work on gift cards.
What happens to my document afterwards?
A person looks at it, checks the name and the date, issues the code and deletes it. We keep no copy and no scan. What remains is the email exchange itself, and the privacy policy sets out how long that is kept and how to have it removed.
Can I order for my whole class or a student society?
Yes, and for most groups it beats the individual code. Bulk orders start at ten pens and are quoted one by one, because the quantity, the finishes and the date all move the number.
Send the details through the wholesale page and a written quote comes back within two working days. Societies buying for a stall, and departments buying for a year group, use the same route.
Do I need the pen to use the app?
No. Write the card, export the PDF, print it on anything with paper in it. The pen and the pocket printer are what make the result small enough to live in a pocket, but the app never checks whether you own one.
Does it work offline, on my phone?
Yes. Install it from your browser and it opens from the home screen with no connection at all — on a train, in a library, in a corridor before a seminar.
Everything you write stays on that device, so export JSON as a backup before you change phone or clear your browser. There is no copy on our side, which means there is nothing for us to restore.
Before term starts
Kit yourself out for the year.
The pen, the pocket printer and three rolls of archival paper — dispatched within 48 hours, tracked to your halls or to your parents' door. Your student code comes off at the checkout.
Free shipping over $50 · Dispatched within 48 hours · 30-day returns